CN218966105U

CN218966105U - Wear-resistant surfacing structure for inner hole of machine barrel

Info

Publication number: CN218966105U
Application number: CN202222981281.6U
Authority: CN
Inventors: 徐辉
Original assignee: Zhejiang Jinghong Machinery Co ltd
Current assignee: Zhejiang Jinghong Machinery Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-05
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a cylinder inner hole anti-wear surfacing structure, which comprises a double-screw cylinder body, wherein a plurality of long grooves are formed in the bottom of a cylinder inner hole, the long grooves are symmetrically distributed in two depressions of the cylinder inner hole, a plasma surfacing technology is adopted to surfacing nickel-based alloy powder to the bottom of the cylinder inner hole, the abrasion of cylinder materials is replaced, compared with the original nitriding steel property, the abrasion resistance is greatly improved, after the cylinder is used for a period of time, a layer of new alloy is sprayed and welded in the long grooves again after the nickel-based alloy is worn, the service life of the cylinder is prolonged, and the cost is saved.

Description

Wear-resistant surfacing structure for inner hole of machine barrel

Technical Field

The utility model relates to the field of machine barrels, in particular to a machine barrel inner hole wear-resistant surfacing structure.

Background

With the increase of highly calcified plastic products, the development and use of various modified engineering plastics have higher and higher requirements on the wear resistance of the machine barrel, and if the machine barrel is frequently replaced, the cost is increased for enterprises, and the cost performance is poor for clients.

In particular, the raw material occupies a 92/188 cone double machine barrel with a relatively large ratio, the inner hole is worn, so that a whole machine barrel is scrapped, the raw material of the machine barrel is 2.5 tons, and the cost burden is relatively large.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a machine barrel inner hole anti-abrasion surfacing structure, which solves the existing pain point in the field.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a barrel hole abrasionproof decreases build-up welding structure, includes the twin-screw barrel body, has seted up a plurality of elongated slots in barrel hole bottom, elongated slot symmetric distribution is in barrel hole twice is sunken, can almost completely cover the barrel bottom, the build-up welding has nickel base alloy powder in the elongated slot, the nickel base alloy can replace the barrel to receive wearing and tearing.

Preferably, the barrel is used for a period of time, and after the alloy layer wears away, a new layer of alloy is spray welded in the elongated slot.

In summary, compared with the prior art, the utility model has the following beneficial effects: the nickel-based alloy powder is deposited on the bottom of the inner hole of the machine barrel by adopting a plasma deposition technique, so that the nickel-based alloy powder replaces the machine barrel material to be worn, the wear resistance is greatly improved compared with the original nitriding steel property, the nickel-based alloy powder can be replenished at any time after the alloy layer is worn, the service life of the machine barrel is prolonged, and the cost is saved.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present utility model are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

FIG. 1 is a schematic structural view of a wear-resistant build-up welding structure for an inner bore of a machine barrel.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The utility model provides a barrel hole abrasionproof decreases build-up welding structure, includes double screw barrel body, is 92/188 awl double barrel in this example, is provided with 12 elongated slots about 360mm in barrel hole bottom, the elongated slot can be formed by the slot drawing machine processing, 12 elongated slot symmetric distribution is in barrel hole twice is sunken, there is nickel base alloy powder through the plasma build-up welding machine build-up welding in the elongated slot, and alloy powder hardness after the build-up welding can reach HRC65-68 degrees, improves hole wear resistance greatly.

After the machine barrel is used for a period of time and the alloy layer is worn, a plasma surfacing machine can be reused to spray and weld a new layer of alloy in the long groove again.

The foregoing is merely exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims.

Claims

1. An anti-abrasion surfacing structure for an inner hole of a machine barrel is characterized in that: the double-screw machine barrel comprises a double-screw machine barrel body, wherein a plurality of long grooves are formed in the bottom of an inner hole of the machine barrel, the long grooves are symmetrically distributed in two depressions of the inner hole of the machine barrel, nickel-based alloy powder is deposited in the long grooves in a overlaying mode, and the nickel-based alloy can replace the machine barrel to be worn.